What should be passed into if() to print 'Hello World'?

Question

What should be passed into the if() to print the output as "Hello World"? [Note: It should execute the else block.] if(?){ } else { echo "World"; }

Answer 1

"if" is a conditional control structure. That means basically that it's part of the PHP language that determines which lines of code are executed, and in which order.

if works by evaluating what is between the parentheses right after it. So:

if((2+2) == 4) {

print "Yes!";

}

would print "Yes!".

What is between the curly brackets of the if control structure is then executed IF the bit between the parentheses evaluates as TRUE.

In your case, the very simplest (but sort of redundant) way of doing this would be:

if(TRUE) {

echo "World!";

}